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CVE-2023-39456

HIGHCVSS 7.5/10EPSS 53.48%

Last modified

CVE-2023-39456 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Improper Input Validation vulnerability in Apache Traffic Server with malformed HTTP/2 frames.This issue affects Apache Traffic Server: from 9.0.0 through 9.2.2. Users are recommended to upgrade to version 9.2.3, which fixes the issue.. EPSS estimates a 53.48% chance of exploitation in the next 30 days.

Description

Improper Input Validation vulnerability in Apache Traffic Server with malformed HTTP/2 frames.This issue affects Apache Traffic Server: from 9.0.0 through 9.2.2. Users are recommended to upgrade to version 9.2.3, which fixes the issue.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
53.48%

98.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheTraffic Server>= 9.0.0, < 9.2.3
FedoraprojectFedora37
FedoraprojectFedora38

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-39456?
Improper Input Validation vulnerability in Apache Traffic Server with malformed HTTP/2 frames.This issue affects Apache Traffic Server: from 9.0.0 through 9.2.2. Users are recommended to upgrade to version 9.2.3, which fixes the issue.
How severe is CVE-2023-39456?
CVE-2023-39456 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 53.48% probability of exploitation in the next 30 days.
How do I fix CVE-2023-39456?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST